DUPLICATIVE

duplicative (doo-plik-<<schwa>>-tiv alsodoo-pli-kay-tiv), adj.1. Having  or characterized by

having  overlapping  content,  intentions,  or  effect  <  duplicative  sources>  <duplicative  evidence>

<duplicative  regulations>.  2.Duplicate;  having  or  characterized  by  having  identical  content

<duplicative database> <duplicative backup>. [Blacks Law 8th]